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A. INTRODUCING the American Sensors

D. What do the LED lights mean?

Carbon Monoxide Alarm

Power – Green

This lights up green when the unit

This symbol alerts you to important operating instructions or to

has power. It is normal for this

potentially hazardous situations. Please read these items carefully.

light to be on while the unit is

plugged in. If this light is off, the

IMPORTANT: Please read this entire owner's manual and follow all

unit is not operating properly.

directions as written.

Alarm – Red

This flashes Red when the full alarm sounds. It is normal for this

WARNING:

light to turn on when you press the Test/Reset button. The alarm

Never ignore your carbon monoxide alarm if it activates. See

signal consists of 4 rapid beeps repeating every 5 seconds, with the

sections D & F for more information.

Red LED light flashing every time the alarm horn beeps.

Trouble Alarm: If the unit detects a fault within its circuitry, it

INTRODUCTION

will indicate a malfunction with a single loud beep and flashing

red light once every minute. The green LED will be off.

This Carbon Monoxide Alarm is an effective product for detecting

any build-up of carbon monoxide in your home.

Low Back up Power – Yellow

Your new Alarm:

CO900 & CO920 Models only:

• Monitors for carbon monoxide continuously

Your Carbon Monoxide Alarm has a low level back-up battery

warning. When the battery power is low, the yellow LED will flash

• Is easy to install

every 5 seconds and the alarm will beep once every minute. During

• Sounds a loud alarm (85 dB) when it detects a hazardous build-up

a mainline power failure or when unplugged to test the back-up

of carbon monoxide

power source (as per Section H) the indicator will light up and

• Performs a continuous self diagnostic check of the electronics

flash yellow, accompanied by a short beeping sound if the battery is

• The CO900 & CO920 models feature a back up power source in

low. This means the battery needs immediate replacing. It is normal

case of a mainline power failure

for this light to turn on once or twice immediately after you plug in

the alarm or after a power failure.

• Has a Test/Reset button so that you can test or reset the alarm at

any time

E. What does the Digital LED Display Mean?

• Is listed by Underwriters Laboratories Inc. to

FOR MODELS CO910 & CO920 ONLY:

UL2034 - effective October 1, 1998

These models feature a Digital LED Display (Light Emitting Diode)

• Has a five-year limited warranty (Note: does not include back-up

that will show the level of carbon monoxide present when the unit

battery)

senses concentrations of 46 parts per

million (ppm) or greater. See section

WARNING:

L for more information on the

dangers of carbon monoxide.

For any concentration below 45 PPM the display will

Carbon monoxide alarm is designed to detect carbon monoxide

show one dash "—"

gas from ANY source of combustion. It is NOT designed to

detect smoke, fire or any other gas.

Reading the Digital LED Display

CO Concentration (ppm)

If you have any questions regarding your unit, please call;

46–120 PPM

905-415-1700

121–180 PPM

181 PPM and up

B. Where should you install the Alarm?

Malfunction

The human body is most vulnerable to the effects of carbon

Caution:

monoxide during sleeping hours. Since carbon

Your unit is constantly monitoring the air and will go into full

monoxide moves freely in

alarm if ongoing, hazardous levels of CO are detected. Follow

the air, the suggested

the instructions in section F if the full alarm sounds.

location is in or as near as

possible to sleeping areas of

the home. For maximum

F. What should you do if the ALARM sounds?

protection, a carbon

If potentially harmful levels of carbon monoxide are detected,

monoxide alarm should be

your unit will go into a continuous full alarm. The alarm signal

located outside primary

consists of 4 rapid beeps repeating every 5 seconds, with the red

sleeping areas or on each

LED light flashing every time the alarm horn beeps.

level of your home.

WARNING

The illustration above highlights suggested CO alarm locations in

the home.

Actuation of your CO alarm indicates the presence of

The electronic sensor detects carbon monoxide, measures the

carbon monoxide (CO) which can KILL YOU. If alarm

concentration and sounds a loud alarm before a potentially harmful

signal sounds:

level is reached.

1. Operate reset/silence button;

2. Call your emergency services (

Caution:

[fire department or 911];

This alarm will only indicate the presence of carbon monoxide

3. Immediately move to fresh air–outdoors or by an

at the sensor. Carbon monoxide may be present in other areas.

open door/window. Do a head count to check that all

persons are accounted for. Do not reenter the

Some locations may interfere with the proper operation of the

premises

alarm and may cause false alarms or trouble signals.

door/window

responders have arrived, the premises have been

Do not place the Alarm in the following areas:

aired out, and your alarm remains in its normal

• Where the temperature may drop below 40°F (4.4°C) or exceed

condition;

100°F (37.8°C).

4. After following steps 1–3, if your alarm reactivates

• Near paint thinner fumes or household cleaning products. Ensure

within a 24 hour period, repeat steps 1–3 and

proper ventilation when using these types of chemicals.

call

(

• Within 6 feet (1.8 m) of any cooking or open flame appliances

CO from fuel burning equipment and appliances,

such as furnaces, stoves and fireplaces.

and inspect for proper operation of this equipment.

• In exhaust streams from gas engines, vents, flues or chimneys.

If problems are identified during this inspection have

• Do not place in close proximity to an automobile exhaust pipe;

the equipment serviced immediately. Note any

this will damage the alarm.

combustion equipment not inspected by the

technician

WARNING:

instructions, or contact the manufacturer directly,

for more information about CO safety and this

Do not use this unit in an outlet that is controlled by a wall

equipment. Make sure that motor vehicles are not,

switch. To work properly, the unit must not be blocked by

and have not been, operating in an attached garage

furniture or draperies.

or adjacent to the residence.

What to do after resetting the unit following an alarm?

A full continuous alarm within six minutes after reset confirms

C. How should you install the plug-in models?

ongoing presence of harmful levels of carbon monoxide. If this occurs

follow instructions 1-3 above.

Your American Sensors Carbon

What to do after a carbon monoxide problem has been

Monoxide Alarm is easy to

corrected?

install to protect you and your

After a carbon monoxide problem has been corrected reset your alarm

family in your home, cottage,

by pushing the Test/Reset button as per the instructions on Section G.

cabin and office.

Simply plug the Carbon

WARNING:

Monoxide Alarm into a standard

This device will only alarm if carbon monoxide is detected. If not

120 Volt AC wall outlet in your

responded to, the presence of carbon monoxide can be fatal. For list

home.

of sources of carbon monoxide, see Section M.

If you have a double outlet, plug

the unit into the bottom outlet

Typical conditions which can result in CO false alarms:

so that the top outlet is available

1) Excessive spillage or reverse venting of fuel burning appliances

for other use.

caused by outdoor ambient conditions, such as:

a) Wind direction and/or velocity, including high gusts of wind.

Heavy air in the vent pipes (cold/humid air with extended

To provide maximum protection, please allow 48 hours for your

periods between cycles).

unit to initialize after installation. The unit will, however,

b) Negative pressure differential resulting from the use of exhaust

immediately warn you of dangerous carbon monoxide levels if

fans.

they are present in your home.

c) Simultaneous operation of several fuel burning appliances

competing for limited internal air.

d) Vent pipe connections vibrating loose from clothes dryers,

FOR PLUG-IN MODELS CO900 AND CO920:

furnaces, or water heaters.

Connect the back-up battery to terminals, as per section I, before

e) Obstructions in or unconventional vent pipe designs which can

plugging in the alarm. These models are equipped with a back-up

amplify the above situations.

battery for security in the case of a temporary power failure and will

2) Extended operation of unvented fuel burning devices (range,

provide at least eight hours of back-up protection when used with

oven, fireplace, etc.).

the recommended battery.

3) Temperature inversions which can trap exhaust gasses near the

ground.

4) Car idling in an open or closed attached garage, or near a home.

G. How can you test your back-up battery?

The CO900 & CO920 alarms are equipped with a 9 volt back-up

battery to supply power to your alarm in the event of a power

Power light

(Green)

failure. A fully charged battery will power your alarm for at least 8

Alarm light

hours and still be able to provide an alarm signal for 12 hours. The

(Red)

battery should be tested at least once a month.

Low Back-up

How to test the back-up power source

Power (Yellow)

1. Unplug the unit from the outlet.

2. Wait for 3 minutes to see if the unit produces a low battery signal

(Yellow LED flashes every 5 seconds, unit beeps and red LED

flashes once per minute).

3. If yellow LED flashes, the battery is low and should be

replaced immediately (see section I) or your unit will not

detect carbon monoxide during a power failure.

4. Re-install the unit according to section C.

Important: The yellow low back-up indicator will warn of a low

back-up battery only when there is a power failure or the unit is

unplugged.

Battery Installation Flag

When protruding from the side of the unit it indicates there is no

battery in the alarm. Beside this flag on the side of the unit is

marked:

Caution:

Your unit will not operate during a power failure with the flag

protruding. Always ensure the unit contains a fully charged

battery that will power the unit as per the tests above.

Normal reading

H. How can you Test/Reset the Alarm?

indicating safe

environment

A green power light indicates that power is supplied.

The American Sensors Carbon

Monoxide Alarm is designed to do a

continuous self-diagnostic check of

its micro processing circuitry when

Display Accuracy

in use.

± 25%

To test the Alarm (wait at least ten

± 50%

minutes after installing it), press and

+ 150% - 50%

release the Test/Reset button. The Alarm will sound for two full

cycles of the full alarm pattern (4 beeps–delay, Red LED flashes

Display shows blank

with every beep).

To reset after an alarm, press the Test/Reset button to silence or

reset the unit. This will silence the alarm for up to 6 minutes. If the

unit re-alarms after reset it confirms the ongoing presence of

harmful levels of carbon monoxide.

If you have any questions regarding your unit, please call:

Dicon Global Inc. 1-800-387-4219

I. How can you replace your back-up battery?

How to replace the battery

1. Unplug alarm from outlet; battery is at the bottom on back of

unit

2. Push battery to left to remove from plastic spring

3. Remove existing 9 volt battery

4. Insert fresh 9 volt battery into terminals. Push battery and wires

back into enclosure.

Use only recommended battery.

5. Test new battery as per section H.

nor

move

away

from

the

open

until

the

emergency

services

qualified

appliance

technician

) to investigate for sources of

CO900 & CO920 models recommended battery:

Duracell 9V Alkaline MN1604 or MX1604 (Available at most retail outlets)

Use of non-recommended batteries can have a detrimental effect

on alarm operation

and

consult

the

manufacturer's

J. How can you maintain your Alarm?

A CO Alarm is useful

only if it works. The

following illustration

explains proper

maintenance:

WARNING:

Do not paint over this CO alarm.

K. What is carbon monoxide and why should you

be concerned?

Carbon monoxide is a dangerous,

poisonous gas. It is often referred to

as the Silent Killer because it has

no odor or taste and it cannot be

seen. The presence of carbon

monoxide inhibits the blood's

capacity to transport oxygen

throughout the body, which can

eventually lead to brain damage.

In any enclosed space (home,

office, recreational vehicle or boat)

even a small accumulation of

carbon monoxide can be dangerous.

L. What are the possible symptoms of carbon

monoxide poisoning?

Carbon monoxide (CO) is odorless, colorless, tasteless and very

toxic. When inhaled, it produces an effect known as chemical

asphyxiation. Injury is due to the combining of CO with the

available hemoglobin in the blood, which lowers the oxygen-

carrying capacity of the blood. In the presence of carbon monoxide,

the body is quickly affected by oxygen starvation.

The following symptoms are related to carbon monoxide poisoning

and should be discussed with all members of the household so that

you know what to look for:

Extreme Exposure (A-C): Unconsciousness, convulsions,

cardio-respiratory failure, death

Medium Exposure (D-G): Severe throbbing headache,

drowsiness, confusion, vomiting, fast heart rate

Mild Exposure (H-J): Slight headache, nausea, fatigue (often

described as "flu-like" symptoms)

Many cases of reported CARBON MONOXIDE POISONING

indicate that while victims are aware they are not well, they

become so disoriented they are unable to save themselves by either

exiting the building or calling for assistance. Young children and

household pets may be the first affected. Exposure during sleep is

particularly dangerous because the victim usually does not awaken.

➞

IF BATTERY FLAG IS PROTRUDING;

The amount of carbon monoxide in the air is measured as ppm

WARNING: BATTERY HAS

(parts per million). The graph below shows the important

BEEN REMOVED

relationship between carbon monoxide in the air, exposure time

and health effects.

For most people, mild symptoms generally will be felt after several

hours of exposure to 100 ppm of carbon monoxide. Higher levels

will lead to more severe symptoms or death.

Test/Reset

button

CO)

(PPM

M. What are the potential sources of carbon

monoxide?

Although many products of combustion can cause discomfort and

adverse health effects, it is carbon monoxide (CO) that presents

the greatest threat to life.

Clogged Chimney

Wood Stove

Battery flag

Push against

plastic spring

to insert or

remove battery

Automobile and Garage

Gas Water Heater

Battery connects

to terminals

Gas or Oil Furnace

Gas Appliances

CO is produced by the incomplete combustion of fuels such as

natural gas, propane, heating oil, kerosene, coal, charcoal, gasoline

or wood. The incomplete combustion of fuel can occur in any

device that depends on burning for energy or heat such as furnaces,

boilers, room heaters, hot water heaters, stoves or grills and in any

gasoline- powered vehicle or engine (e.g., generator set or

Test/Reset button

lawnmower). Tobacco smoke also adds CO to the air you breathe.

Test the unit

When properly installed and maintained, your natural gas furnace

by pressing the

and hot water heater do not pollute your air space with carbon

Test/Reset button

monoxide. Natural gas is known as a "clean burning" fuel because

once a month.

under correct operating conditions the combustion products are

water vapor and carbon dioxide, which are not toxic. (Carbon

Air vents

dioxide [CO2] is also present in the air we exhale and is necessary

Carefully vacuum the

for plant life.) The products of combustion are vented from

front housing every six

furnaces and water heaters to the outside by means of a flue duct or

months to keep it free

chimney.

of dust.

Caution:

Correct operation of fuel-burning equipment requires two key

conditions. There must be:

• An adequate supply of air for complete combustion

• Proper venting of the products of combustion from the

furnace through the chimney, vent or duct to the outside

Typical Carbon Monoxide Problems

1. Equipment problems, due to defects, poor maintenance, damaged

or cracked heat exchangers.

2. Collapsed or blocked chimneys or flues, dislodged, disconnected

Alarm vent

or damaged vents.

3. Downdraft in chimneys or flues; this can also be caused by very

Sensor vent

long or circuitous flue runs, improper location of flue exhaust or

allows carbon

wind conditions.

monoxide to

enter the

4. Improper installation or operation of equipment, chimneys or

sensing circuit.

vents.

5. Air tightness of house envelope results in a lack of air for the

combustion process.

6. Inadequate exhaust of space heaters or appliances.

7. Exhaust ventilation/fireplace competing for air supply.

N. Technical Information

Your unit utilizes a proprietary Electronic Sensing Technology that

permits the unit to vary the exposure time before the alarm sounds

based on carbon monoxide concentrations.

Exposure Times

The carbon monoxide concentrations and time standards for the

alarms are as follows:

The Full Alarm Activates

• Within 60–240 minutes at exposures of 70 ppm

• Within 10–50 minutes at exposures of 150 ppm

• Within 4–15 minutes at exposures of 400 ppm

Models CO900, CO910 & CO920

Power Supply

120 VAC, 60 Hz, 7W

Dimensions

16cm x 7.5cm x 4.5cm

(6.6" x 3.0" x 1.7")

Normal Operating Conditions:

Operating Temperature

4.4°C to 37.8°C (40°F to 100°F)

Relative Humidity

30% to 70%

Alarm

85 dB at 10 ft

WARNING:

This product is intended for use in ordinary indoor locations of

family living units. It is not designed to measure compliance with

Occupational Safety and Health Administration (OSHA) commercial

and industrial standards. Individuals with medical problems may

consider using warning devices which provide audible and visual

signals for carbon monoxide concentrations under 30 ppm.

O. Warranty Information

5 Year Limited Warranty

Dicon Global Inc., which manufactures American

Sensors Carbon Monoxide Alarms, warrants its product, to the original

consumer purchaser, to be free from defects in material and

workmanship under normal use and service for a period of five (5)

years from date of purchase. Dicon Global Inc. makes no

other express warranty for this Carbon Monoxide Alarm. No agent,

representative, dealer or employee of the Company has the authority

to increase or alter the obligations or limitations of this warranty. The

company's obligation of this warranty shall be limited to the repair or

replacement of any part of the alarm which is found to be defective in

materials or workmanship under normal use of service during the five

(5) year period commencing with the date of purchase.

Units may be returned to point of purchase according to retailers

exchange / return policy. Or call 1-800-387-4219, for shipping

instructions and a returned goods authorization number "RGA"

number, to return to Dicon Global Inc. Returned goods

must be shipped prepaid. A cheque for $5.00 is also required for

return postage. Please mark the "RGA" number on the exterior of

your package. Date code located on back of smoke alarm.

The company shall not be obligated to repair or replace units

which are found to be in need of repair because of damage,

unreasonable use, modifications, or alterations occurring after

the date of purchase.

The duration of any implied warranty, including that of

merchantability or fitness for any particular purpose, shall be

limited to five (5) years on the Alarm commencing with the date

of purchase. In no case shall the Company be liable for any

consequential or incidental damages for breach of this or any other

warranty, expressed or implied whatsoever, even if the loss or

damage is caused by the Company's negligence or fault. Some

states/provinces do not allow the exclusion or limitation of

incidental or consequential damages, so the above limitation or

Wood or Gas Fireplace

exclusion may not apply to you. This warranty gives you specific

legal rights, and you may also have other rights, which vary

regionally.

Important:

Not suitable as a smoke alarm or for detecting other gases.

This device is not suitable for installation in a hazardous

location, as defined in the national electrical code.

Gas or Kerosene Heater

P. Tips for the Homeowner

Energy Conservation and Indoor Air Quality

Two steps that homeowners take to conserve energy may adversely

affect indoor air quality.

Cigarette Smoke

Since air leakage can account for as much as 40% of heat loss,

houses are being made more air tight. Reduced air leakage will

contribute to higher concentrations of air contaminants from

indoor sources and can cause draft reversal in the furnace or

fireplace chimney when the demand for air by fireplaces, furnaces

and exhaust fans exceeds the air supplied by leakage area and

supply ducts.

Converting from oil to gas, without taking steps to prevent

chimney deterioration, will increase the risk of chimney blockage,

draft failure and the associated release of combustion products into

the house. Qualified contractors and inspection by the gas company

are recommended.

Dirt and Blockage

Never insulate or try to seal up a draft hood, wind cap or exhaust

vent on any gas appliance (furnace, hot water heater, range, dryer

or space heater). Keep your equipment area clean. Don't store

anything that could restrict air circulation close to equipment.

It is absolutely essential to your safety that panels and grills on the

furnace are kept in place and that the fan compartment door is

closed when the furnace is operating.

If you have a gas water heater, make sure that combustion air

openings at the bottom of the tank and the opening below the draft

diverter (on top of the tank next to the flue duct) remain

unblocked.

If you have a gas dryer, the exhaust duct must be vented to the

outside and have a hood at the end. Check that the exhaust system

is not blocked by lint or debris and that the flapper in the hood

moves freely.

For all fuel-burning equipment, make sure that vent hoods and

pipes are not blocked by insulation, leaves or bird nests.

Using other equipment that consumes or exhausts

household air

If you use exhaust fans, a fireplace or other fuel burning heaters or

stoves:

Run exhaust fans for just a minute or two at a time. Prolonged use

could remove too much air, and it wastes heat.

Do not run power attic vents during the winter or when your

furnace is on.

When your fireplace, coal or wood stove is operating, open a

window and close off warm air registers in the room or install a

fresh air duct directly to the fireplace or stove so that it won't steal

air from your furnace.

Confining or enclosing gas-fired equipment

If you have partitioned off your furnace and water heater, you may

need additional ventilation.

Danger Signs

Stuffy, stale or smelly air, back drafts and soot from a fireplace or

furnace chimney usually means your home needs more air for

proper combustion and healthy living. For gas-fired equipment,

mostly yellow (rather than clear blue) burner flames, a pilot light

that keeps going out, or a smell of gas indicate trouble. Turn off the

equipment and contact your gas company emergency service.

Additional Safety Tips

Have your fuel-burning equipment checked periodically for safety

and efficiency by a qualified service technician.

If you are adding a wood or coal burning stove to a home, make

sure that the stove is properly installed and vented. Check with the

Building and Inspections Department of your local municipality or

consult a heating contractor before installation. If you have already

installed a wood or coal stove without a building permit or

inspection, consult your local municipal building authority. Some

"do-it-yourselfers" have unknowingly created dangerous conditions.

Once you file for a permit, a qualified inspector will check your

installation and explain how to rectify any mistakes.

Do not expose yourself to carbon monoxide through carelessness.

Never operate a gasoline-powered engine in a confined or enclosed

space such as a garage or tool shed. Never use a kerosene stove or

charcoal grill in a confined space such as a closed garage or

recreational van.

On masonry chimneys inspect the clean-out regularly to ensure that

the chimney is free and clear of debris.

Regardless of the fuel your furnace, fireplace or stove uses, your

chimney should be inspected from time to time by a competent

chimney contractor.

Never try to add a "heat reclaimer" or "automatic flue damper" to

your gas furnace or water heater. Gas installation safety codes

prohibit use of these devices as an add-on to an existing furnace

because of the risks of incorrect installation and mechanical failure.

When using paints, household cleaning supplies or similar

materials, be sure that you're using them in a well ventilated area.

Following sensible maintenance and safety procedures in the home

will give you fuel savings without endangering your health.

Q. COMMONLY ASKED QUESTIONS

Q. What does the alarm sound like?

A. The alarm signal consists of 4 constantly repeating rapid beeps

every 5 seconds, with the red LED light flashing every time the

alarm horn beeps.

Q. Should I locate the unit in a high or low location?

A. Carbon monoxide is virtually the same weight as air and

therefore the alarm protects you in a high or low location.

Q. Is it normal that the unit is slightly warm?

A. Yes, your alarm may be slightly warm due to a transformer

located inside.

Q. Will this unit detect smoke or fire?

A. No, a carbon monoxide alarm only detects carbon monoxide.

Smoke alarms are still necessary.

Q. How do I test the unit?

A. Push the test/reset button. Do not use car exhaust or

intentionally introduce carbon monoxide through other

methods. These methods are dangerous to you and the

pollutants from car exhaust may damage the unit.

Dicon Globa Inc.

2- Steelcase Road West, Unit 3

Markham, Ontario, Canada L3R 1B2

email: [email protected]

CARBON MONOXIDE

Alarm

D TECTEUR DE MONOXYDE

DE CARBONE

Owner's Manual

Manuel de l'utilisateur

CO900/CO910/CO920

120 Volt Plug-In Models

Modèles pour brancher 120Volts

Please read carefully and keep in a safe place

Veuillez S.V.P. lire attentivement et conserver

dans un endroit sécuritaire.

1500- 0180